Home / 1,055,816,492.20-1,584,291,608.70-442,462,719.40

Finding the Fourth Proportional to 1,055,816,492.20, 1,584,291,608.70 and 442,462,719.40

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Solution

The fourth proportional to 1,055,816,492.20, 1,584,291,608.70 and 442,462,719.40 is: 663,931,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,816,492.20 : 1,584,291,608.70 = 442,462,719.40 : x
  2. Step 2: Convert to fraction form
    1,055,816,492.20/1,584,291,608.70 = 442,462,719.40/x
  3. Step 3: Cross multiply
    1,055,816,492.20x = 1,584,291,608.70 × 442,462,719.40
  4. Step 4: Simplify right side
    1,055,816,492.20x = 700,989,973,508,002,688
  5. Step 5: Solve for x
    x = 700,989,973,508,002,688/1,055,816,492.20
  6. Step 6: Final answer
    x = 663,931,638.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.